/* originally gcc generated, but now changed. don't overwrite. */ .text #include #include #include /* Input: * rdi resume flag */ ENTRY(do_magic) .LFB5: subq $8, %rsp .LCFI2: testl %edi, %edi jne .L90 call do_magic_suspend_1 call save_processor_state movq %rsp, saved_context_esp(%rip) movq %rax, saved_context_eax(%rip) movq %rbx, saved_context_ebx(%rip) movq %rcx, saved_context_ecx(%rip) movq %rdx, saved_context_edx(%rip) movq %rbp, saved_context_ebp(%rip) movq %rsi, saved_context_esi(%rip) movq %rdi, saved_context_edi(%rip) movq %r8, saved_context_r08(%rip) movq %r9, saved_context_r09(%rip) movq %r10, saved_context_r10(%rip) movq %r11, saved_context_r11(%rip) movq %r12, saved_context_r12(%rip) movq %r13, saved_context_r13(%rip) movq %r14, saved_context_r14(%rip) movq %r15, saved_context_r15(%rip) pushfq ; popq saved_context_eflags(%rip) addq $8, %rsp jmp do_magic_suspend_2 .L90: /* set up cr3 */ leaq init_level4_pgt(%rip),%rax subq $__START_KERNEL_map,%rax movq %rax,%cr3 movq mmu_cr4_features(%rip), %rax movq %rax, %rdx andq $~(1<<7), %rdx # PGE movq %rdx, %cr4; # turn off PGE movq %cr3, %rcx; # flush TLB movq %rcx, %cr3; movq %rax, %cr4; # turn PGE back on call do_magic_resume_1 movl nr_copy_pages(%rip), %eax xorl %ecx, %ecx movq $0, loop(%rip) testl %eax, %eax je .L108 .L105: xorl %esi, %esi movq $0, loop2(%rip) jmp .L104 .p2align 4,,7 .L111: movq loop(%rip), %rcx .L104: movq pagedir_nosave(%rip), %rdx movq %rcx, %rax salq $5, %rax movq 8(%rdx,%rax), %rcx movq (%rdx,%rax), %rax movzbl (%rsi,%rax), %eax movb %al, (%rsi,%rcx) movq %cr3, %rax; # flush TLB movq %rax, %cr3; movq loop2(%rip), %rax incq %rax cmpq $4095, %rax movq %rax, %rsi movq %rax, loop2(%rip) jbe .L111 movq loop(%rip), %rax incq %rax movq %rax, %rcx movq %rax, loop(%rip) mov nr_copy_pages(%rip), %eax cmpq %rax, %rcx jb .L105 .L108: .align 4 movl $24, %eax movl %eax, %ds movq saved_context_esp(%rip), %rsp movq saved_context_ebp(%rip), %rbp movq saved_context_eax(%rip), %rax movq saved_context_ebx(%rip), %rbx movq saved_context_ecx(%rip), %rcx movq saved_context_edx(%rip), %rdx movq saved_context_esi(%rip), %rsi movq saved_context_edi(%rip), %rdi movq saved_context_r08(%rip), %r8 movq saved_context_r09(%rip), %r9 movq saved_context_r10(%rip), %r10 movq saved_context_r11(%rip), %r11 movq saved_context_r12(%rip), %r12 movq saved_context_r13(%rip), %r13 movq saved_context_r14(%rip), %r14 movq saved_context_r15(%rip), %r15 pushq saved_context_eflags(%rip) ; popfq call restore_processor_state addq $8, %rsp jmp do_magic_resume_2 .section .data.nosave loop: .quad 0 loop2: .quad 0 .previous